In order to control thermal stresses, some types of modern engines use pistons with()
A、heavy wall and intensive cooling
B、heavy wall and no cooling
C、thin wall and no cooling
D、thin wall and intensive cooling
A、heavy wall and intensive cooling
B、heavy wall and no cooling
C、thin wall and no cooling
D、thin wall and intensive cooling
A、A.at the jacket cooler outlet to control the flux through the engine B、B.at the jacket cooler outlet to control the flux through the cooler C、C.at the engine outlet to control the flux through the engine D、D.at the engine inlet to control the flux through the engine
A、furnace to be re-purged B、electric charge to buildup in the igniter C、fuel pump to restart D、dram level to stabilize
A、furnace to be re-purged B、electric charge to buildup in the igniter C、fuel pump to restart D、drum level to stabilize